Impact Test of the furnance convection tube bundle A335 P22 3" x 7,62mm

[AdrianoPL]

I'd like to ask U is there another way to perform an impact test of the tube bundle material as I mentioned in the subject.
Charpy method is not fisible to be done because of the tube thickness.

During TA we had cut a part of the bundle to perform distructive tests and see what hapeness after 100.000 hours of work in 450 C deg.
One test that we are not able to do is impact test to see how brittle material is.

Thanks in advance.

Never stop learning, because life never stops teaching.

 

[weldstan]

Subsize specimens can readily be obtained from your 7.6 mm thick tubes.

 

[metengr]

Why not cut one or more sample tubes and do a bend test? It is simple and will inform you of remaining ductility in the material. CVN testing is not typical for this type of application.

 

[AdrianoPL]

For this type of application FATT50 is needed - that it why I need impact test.

As for the probe to the Charpy method 10x5mm is the smallest , I think that I will try to inform the supplier to try again and cut these probes.

Thanks for your answers.

Never stop learning, because life never stops teaching.